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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_RENDERER_WEBWORKER_PROXY_H_
#define CHROME_RENDERER_WEBWORKER_PROXY_H_
#include <vector>
#include "base/basictypes.h"
#include "ipc/ipc_channel.h"
#include "webkit/api/public/WebWorker.h"
class ChildThread;
class GURL;
class RenderView;
struct WorkerHostMsg_PostConsoleMessageToWorkerObject_Params;
// This class provides an implementation of WebWorker that the renderer provides
// to the glue. This class converts function calls to IPC messages that are
// dispatched in the worker process by WebWorkerClientProxy. It also receives
// IPC messages from WebWorkerClientProxy which it converts to function calls to
// WebWorkerClient.
class WebWorkerProxy : public WebKit::WebWorker,
public IPC::Channel::Listener {
public:
WebWorkerProxy(WebKit::WebWorkerClient* client,
ChildThread* child_thread,
int render_view_route_id);
virtual ~WebWorkerProxy();
// WebWorker implementation.
virtual void startWorkerContext(const WebKit::WebURL& script_url,
const WebKit::WebString& user_agent,
const WebKit::WebString& source_code);
virtual void terminateWorkerContext();
virtual void postMessageToWorkerContext(
const WebKit::WebString& message,
WebKit::WebMessagePortChannel* channel);
virtual void workerObjectDestroyed();
// IPC::Channel::Listener implementation.
void OnMessageReceived(const IPC::Message& message);
private:
bool Send(IPC::Message* message);
void OnDedicatedWorkerCreated();
void OnPostMessage(const string16& message,
int sent_message_port_id,
int new_routing_id);
void OnPostConsoleMessageToWorkerObject(
const WorkerHostMsg_PostConsoleMessageToWorkerObject_Params& params);
void Disconnect();
// The routing id used to reach WebWorkerClientProxy in the worker process.
int route_id_;
ChildThread* child_thread_;
// The routing id for the RenderView that created this worker.
int render_view_route_id_;
// Used to communicate to the WebCore::Worker object in response to IPC
// messages.
WebKit::WebWorkerClient* client_;
// Stores messages that were sent before the StartWorkerContext message.
std::vector<IPC::Message*> queued_messages_;
DISALLOW_COPY_AND_ASSIGN(WebWorkerProxy);
};
#endif // CHROME_RENDERER_WEBWORKER_PROXY_H_
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